package cn.wolfcode.service.impl;
import cn.wolfcode.domain.Department;
import cn.wolfcode.mapper.DepartmentMapper;
import cn.wolfcode.qo.QueryObject;
import cn.wolfcode.service.IDepartmentService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Collections;
import java.util.List;
@Service
public class DepartmentServiceImpl implements IDepartmentService {
    @Autowired
    private DepartmentMapper departmentMapper;
    @Override
    public void delete(Long id) {
        departmentMapper.deleteByPrimaryKey(id);
    }
    @Override
    public void save(Department department) {
        departmentMapper.insert(department);
    }
    @Override
    public Department get(Long id) {
        return departmentMapper.selectByPrimaryKey(id);
    }
    @Override
    public List<Department> listAll() {
        return departmentMapper.selectAll();
    }
    @Override
    public void update(Department department) {
        departmentMapper.updateByPrimaryKey(department);
    }
    @Override
    public PageInfo<Department> query(QueryObject qo) {

        PageHelper.startPage(qo.getCurrentPage(), qo.getPageSize());
        List<Department> departments = departmentMapper.selectForList(qo);
        return new PageInfo(departments);
        /*
        int count = departmentMapper.selectForCount(qo);
        if (count == 0){
            return new PageResult<>(qo.getCurrentPage(),qo.getPageSize(), Collections.emptyList(),count);
        }
        //获取总页数
        int totalPage = count % qo.getPageSize() == 0 ? count / qo.getPageSize() : count / qo.getPageSize() + 1;
        if (qo.getCurrentPage()>totalPage){
            qo.setCurrentPage(totalPage);
        }
        List<Department> departments = departmentMapper.selectForList(qo);
        return new PageResult<>(qo.getCurrentPage(),qo.getPageSize(),departments,count);*/
    }
}




